public PhotoView() { initWidget(uiBinder.createAndBindUi(this)); cellTable.setWidth("100%", true); pager.setDisplay(cellTable); initColumns(); cellTable.addRangeChangeHandler( new RangeChangeEvent.Handler() { @Override public void onRangeChange(RangeChangeEvent event) { AppContext.getInstance() .getEventBus() .fireEvent(new ShowPhotoRange(event.getNewRange())); } }); }